:root { color-scheme: light; --ink: #14213d; --muted: #4b5563; --line: #cbd5e1; --accent: #1d4ed8; --ok: #166534; --bad: #b91c1c; }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink); background: #fff; }
main { max-width: 42rem; margin: 0 auto; padding: 1.5rem; }
h1 { font-size: 1.6rem; margin: 0 0 .5rem; }
h2 { font-size: 1.2rem; margin: 1.5rem 0 .5rem; }
fieldset { border: 1px solid var(--line); border-radius: 8px; padding: 1rem; margin: 0 0 1rem; }
legend { font-weight: 600; padding: 0 .25rem; }
label { display: block; font-weight: 600; margin: .75rem 0 .25rem; }
input, select, textarea { width: 100%; font: inherit; padding: .5rem .6rem; border: 1px solid #94a3b8; border-radius: 6px; background: #fff; }
textarea { font-family: ui-monospace, Menlo, Consolas, monospace; min-height: 12rem; }
button { font: inherit; font-weight: 600; padding: .6rem 1rem; border-radius: 6px; border: 1px solid var(--accent); background: var(--accent); color: #fff; cursor: pointer; margin: .5rem .5rem .5rem 0; }
button.secondary { background: #fff; color: var(--accent); }
button.danger { background: #b91c1c; border-color: #b91c1c; color: #fff; }
button:disabled { opacity: .5; cursor: not-allowed; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible { outline: 3px solid #f59e0b; outline-offset: 2px; }
.muted { color: var(--muted); }
.error { color: var(--bad); font-weight: 600; }
.notice { border: 1px solid var(--line); border-radius: 8px; padding: .75rem 1rem; margin: 1rem 0; }
.notice.success { border-color: var(--ok); color: var(--ok); }
.legal-links { max-width: 42rem; margin: 0 auto; padding: 0 1.5rem 1.5rem; font-size: .92rem; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 1rem; top: 1rem; background: #fff; padding: .5rem; z-index: 10; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; border-bottom: 1px solid var(--line); padding: .4rem .5rem; vertical-align: top; }
.rule-row { border: 1px solid var(--line); border-radius: 8px; padding: .75rem; margin: .75rem 0; }
.rule-row .grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: .5rem; }
.trace { font-size: .85rem; color: var(--muted); }
@media (max-width: 640px) { .rule-row .grid { grid-template-columns: 1fr; } }